You can specify an additional include directory by setting OPENSSL_INCDIR. Qt will try to find openssl/ssl.h and openssl/opensslv.h in the default include path of the compiler. To load OpenSSL at runtime, set the -openssl-runtime configure argument.The actual libraries to link to can be tweaked by setting the OPENSSL_LIBS, OPENSSL_LIBS_DEBUG, and OPENSSL_LIBS_RELEASE configure arguments. If OPENSSL_PREFIX is set, OPENSSL_INCDIR defaults to OPENSSL_PREFIX/include and OPENSSL_LIBDIR to OPENSSL_PREFIX/lib. If OpenSSL is not found in the normal compiler include and library directories, you can set either the OPENSSL_PREFIX, or OPENSSL_INCDIR and OPENSSL_LIBDIR configure arguments. If you compile Qt yourself, you can configure how Qt uses OpenSSL by setting either the -openssl / -openssl-runtime or -openssl-linked configure flags. Qt Network compiles against a static version of the OpenSSL libs, and OpenSSL becomes part of the Qt5Network library.If they cannot be found at load time, the application fails to start. Qt Network links against the OpenSSL libraries.The OpenSSL libraries are looked up first in the directory of the executable, then in the Windows System directory (usually C:\Windows\system32), and finally in all directories listed in the PATH environment variable. If not found, the application continues to run, but fails to handle SSL communication.Īll official Qt binary builds use this configuration. Qt Network loads OpenSSL libraries (DDLs) when first needed, at runtime.Qt can be configured to use OpenSSL in three ways: Download the latest version of the toolkit that is supported by Qt. Support for Secure Sockets Layer (SSL) communication is provided by the OpenSSL Toolkit, which must be obtained separately. ANGLE: This library converts OpenGL ES 2.0 API calls to DirectX 11 or DirectX 9 calls (depending on availability), removing the need to install graphics drivers on the target machines.At run-time, the ICU DLLs need to be found by copying the DLLs to the application folder or by adding the bin folder of the ICU installation to the PATH environment variable.
ICU: Qt 5 can make use of the ICU library for enhanced UNICODE and Globalization support (see QTextCodec, QCollator::setNumericMode()).Īt compile time, the include and lib folders of the ICU installation must be appended to the INCLUDE and LIB environment variables.OpenSSL Toolkit: Qt can make use of OpenSSL to support Secure Socket Layer (SSL) communication.The following third-party libraries may be used when running Qt 5 applications on Windows. This page describes the required libraries and environment for Qt for Windows.
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